Explain how the backbone of DNA is constructed from nucleotide building blocks.

A. DNA's backbone is not constructed from nucleotide units.

B.Nucleotide building blocks use covalent bonds to attach to one another at their sugar and phosphate ends.

C. Nucleotides use hydrogen bonds to attach themselves to the backbone.

D. Nitrogen bases use hydrogen bonds to attach to one another across the center of the molecule.

Answers

Answer 1

Answer:

B

Explanation:


Related Questions

DNA replication occurs only in eukaryotic cells.

True or false

Answers

False. Both eukaryotic and prokaryotic cells require DNA. Thus, they reproduce in both.

Seafloor spreading happens mostly under the sea except in

Answers

Elaborate more if u need an answer
I’m pretty sure Mountain ranges hope this helps

Which way will the water move?
A) out of the cell
B) it won’t move at all
C) into the cell

Answers

a out of the cell i think
Out of the cell because this it the only way to transfer water

What's the name for the process about how the thermal energy moves in
the ocean?

Answers

Answer:

Ocean Thermal Energy Conversion (OTEC)

Explanation:

What is the name of the gradient between high pressure and low pressure?

Answers

Answer:

Pressure gradient

Explanation:

Hope this helps :)

Answer:

Pressure gradient

Explanation:

The change in pressure measured across a given distance is called a "pressure gradient". The pressure gradient results in a net force that is directed from high to low pressure and this force is called the "pressure gradient force". The pressure gradient force is responsible for triggering the initial movement of air

Help ....plssssssssssssssssss

Answers

Answer: is crust

Explanation:

hope this helps :)

what occurs if a cell is damaged beyond repair?

Answers

Answer:

Apoptosis

Explanation:

Answer:

Apoptosis is programmed cell death, and it usually occurs when the DNA of the cell is damaged beyond repair. Photosynthesis and glycolysis are normal metabolic processes of the cell, and would not result from irreversible damage.

Explanation:

hope this helps

What are ocean waves caused by? What affects how large they are?

Answers

Answer:

Waves are most commonly caused by wind.The size of a wave depends on three factors: the distance over which the wind blows across open water, the strength of the wind, and the duration that the wind blows. The larger these factors, the larger are the waves.

Explanation:

Air density decreases with altitude.

Select one:
True
False

Answers

Answer:

true

Explanation:

Answer:

yes yes it does

Explanation:

Which best explains why food is heated in metal pans?
A.The metal will melt and the food will burn.

B.The metal insulates the food from the heat.


C.The metal reduces the heat until the food freezes.


B.The metal will heat well so the food will cook evenly.

Answers

B. The metal will heat well so the food will cook evenly. I guess is the right answer

Only one plane divides the bodies of humans, dogs, and rabbits into roughly symmetrical "left" and "right" halves.


What type of symmetry do these organisms have?
A.
orbital
B.
bilateral
C.
radial
D.
rotational

Answers

Answer:          Bilateral

Explanation:

symmetry is a type of symmetry in which only one plane divides an organism into halves that are roughly mirror images of each other. The halves need to be mirror images only on the exterior.

If more than one plane of symmetry exists for an organism's body, then it is radially symmetric.

A. What are the two main types of seismic waves that are created during an
earthquake? p waves s waves surface waves

Answers

Explanation:

There are two broad classes of seismic waves: body waves and surface waves. Body waves travel within the body of Earth. They include P, or primary, waves and S, or secondary, waves. P waves cause the ground to compress and expand, that is, to move back and forth, in the direction of travel.

.
Why is on organism able to create a protein from the gene of another organism?

Answers

Because they can make a baby with their oranism

What is the most important requirement for all living things? vitamins carbon dioxide water light

Answers

The answer is carbon dioxide

What is a characteristic of Antarctic Bottom Water?

a. Extremely high density
b. Southward movement toward Antarctica along the seafloor
c. Formation near the Mediterranean north of Africa
d. Extremely low density
e. Fast movement

Answers

A. Extremely high density

please help y'all 15 pts!

Answers

Answer:

B

Have a good day!

Answer: B

Explanation:

Evolution has changed the phisical atributes of all animals

5. The lower chamber of the heart that pumps blood out to the lungs and body is called the _________________________.

Answers

Answer:

ventricles (VEN-trih-kuhls): The two chambers at the bottom of the heart are called the ventricles. The heart has a left ventricle and a right ventricle. Their job is to pump the blood to the body and lungs.

Explanation:

1. Name the protists fitting each of the following descriptions.
Write down only the correct name next to the relevant question number.
1.1 A protozoan which moves using its pseudopodia.
1.2 A protozoan which moves using its flagellum.
1.3 A filamentous green alga.
1.4 A unicellular green alga.
1.5 Microscopic protists which appear as symmetrical, human-made, and
glass-like ornaments.
1.6 Protists that look like fungi.
(6)​

Answers

Answer:

1.1 Amoeba

1.2 Paramecium

1.3 Citations

1.4 Single algae cells

A protozoa that moves using its pseudopodia is an amoeba, one using its flagellum is Euglena and a filamentous green alga is Spirogyra. Chlamydomonas is a unicellular green alga. Microscopic protists that are symmetrical, man-made and appear as glass-like ornaments are diatoms while a protist that looks like a fungus is a mold.

What are Protists?

A protist is a type of eukaryotic organism which is not an animal, plant, or fungus sharing a common ancestor. These are to the exclusion of other eukaryotes which means protists do not form a natural group or clade.

Protists are a group of diverse eukaryotic mainly unicellular microscopic organisms which share certain morphological and physiological characteristics with animals or plants or both.

Several protists showing different functions like an amoeba pushes out its cell membranes to form pseudopods. Euglena belongs to the class of protozoans known as flagellates. Spirogyra has a slender bright green color with a spiral shaped pigment that holds chlorophyll. Chlamydomonas is found in ponds, ditches and moist soil. Diatoms have a silky jewel-like covering. A mold is a protist which is a fungus.

Thus, a protozoa that moves using its pseudopodia is an amoeba, one using its flagellum is Euglena and a filamentous green alga is Spirogyra. Chlamydomonas is a unicellular green alga. Microscopic protists that are symmetrical, man-made and appear as glass-like ornaments are diatoms while a protist that looks like a fungus is a mold.

Learn more about Protista, here:

https://brainly.com/question/8878764

#SPJ6

Choose the correct statements 1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. 2.Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species. 3cross-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. 4.Self-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.

Answers

Answer: The correct statements are 1 and 2:

1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant.

2.Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.

Explanation:

Pollination is the transfer of pollen grains from an anthers to a receptive stigma. In most species of flowering plants, external agents bring about pollination. Also, flowers have evolved special structures and mechanisms to ensure successful pollination.

There are two types of pollination

--> Self pollination: This takes place when mature pollen grains from the anther of a flower fall on the stigma of the same flower or that of another flower on the same plant. This type of pollination brings the male gametes and egg cells of the same plant together. The resultant offspring show very little genetic variation.

--> Cross pollination: This occurs when mature pollen grains of a flower are transferred to the stigma of a flower of another plant of the same or closely related species. This brings the male gametes and egg cells of two different parent plants together. Therefore, there is greater genetic variation among the offspring.

HELP i need to create a story about cells and their functions the organelles are Cell membrane

Cell wall

Nucleus

Chloroplasts

Mitochondria

Vacuoles
im in 7th grade

Answers

Answer:

More than 8.7 million species are living on the planet. Every single species is composed of a cell and it includes both single-celled and multicellular organisms.

The cells provide shape, structure and carries out different types of functions to keep the entire system active. The cell contains different functional structures which are collectively called Organelles, and they are involved in various cellular functions.

Also Read: Difference between organ and organelle

Let us learn more in detail about the different types and functions of Cell Organelles.

Table of Contents

What are Cell Organelles?

List of Cell Organelles and their Functions

Plasma Membrane

Cytoplasm

Nucleus

Endoplasmic Reticulum

Mitochondria

Plastids

Ribosomes

Golgi Apparatus

Microbodies

Cytoskeleton

Cilia and Flagella

Centrosome and Centrioles

Vacuoles

A Brief Summary on Cell Organelles

Why is there so much diversity on Earth

Answers

Answer:

There is a great deal of diversity in life on Earth because the planet has so many different climates that life has adapted to and colonized.

Explanation:

uhm i have 5 questions due in an hour so please help. It's 45 points and they're all abt biology btw~

Answers

Answer:

the point of science is to disprove hypothesis so having a hypothesis that doesn't allow that to happen is not good science

2. they don't fit in our mouths so are a trait from when we had larger jaws

3. bones of your lower jaw, middle ear and voice box (they aren't actually gills fyi, they just look like them)

4. likely yes as their bones were hollow but likely only able to fly short distances, the thought was that they couldn't do their size and weight but with hollow bones they were able to like a quail would

5. no because they could be sister taxa, you would have a hard time proving exactly that this new fossil is the common ancestor that birds came from to replace the old hypothesis (guess) of which one did.

Explanation:

Answer:

A: It is wrong to form a theory that cannot be disproven because the whole point of a theory is to test the theory and prove it.

B: Wisdom Teeth are considered to be a vestigial trait because it is passed along in genetics of humans and is a almost a 100% chance of occurrence.

C: This bird could fly because fossils and research has shown that this creature had similar bone structure to a common day bird.

D: This does not invalidate evolution because many geographic events can happen that may alter the positioning of these fossils like: Any type of corrosion or weathering, or maybe ancient civilization have dug up these fossils and then they were reburied.

Explanation:

For C you can look up archaeopteryx and find an article for evidence

Which plate is located furthest SOUTH?

Answers

Answer:

Antarctic plate

Explanation: The Antarctic Plate started to subduct beneath South America 14 million years ago in the Miocene epoch. At first it subducted only in the southernmost tip of Patagonia, meaning that the Chile Triple Junction lay near the Strait of Magellan.

Write the name of the nitrogenous base that joins to each of the bases

Answers

Answer:

Hydrogen bond

Explanation: Pretty much just a type chemical bond

DNA replication occurs to prepare the cell for
a. growth
b. cell death
c. protection against pathogens
d. cell division

Answers

Answer:

D - Cell Division

Explanation:

This is because the DNA needs to be replicated in order for the cells to be able to divide and create new daughter cells.

How did Franklin's X-ray photograph affect the work of watson
and crick?

Answers

Answer:

Franklin took Photo 51 after scientists confirmed that DNA contained genes. Maurice Wilkins, Franklin´s colleague showed James Watson and Francis Crick Photo 51 without Franklin´s knowledge. Watson and Crick used that image to develop their structural model of DNA.

Explanation:I took that but if ya read it you will know what it is trust me.

Most photosynthesis in the open sea occurs in the
A euphoric zone.
B abyssal zone.
C bathyal zone.
D coastal zone.
E benthic zone.

Answers

I think you mean the Euphotic zone for A. if so, then A!
I think It will be A

Why do fish need to eat other organisms?
O A. to get energy
O B. to get oxygen
O c. to remove wastes
O D. to escape predators

Answers

The correct answer is A. To get energy.

They eat other organisms because they need food, and food is considered energy because it allows the fish to function more efficiently.

when a offspring show characteristics of both parent organism is a result of what reproduction​

Answers

Answer:

The answer is Sexual Reproduction

Please mark BRAINLIEST if correct! Have a blessed day/ night <3

What is limiting the rate of photosynthesis at point A?

please help me out

Answers

Answer:

The factor which is working at the lowest level will usually be the limiting factor of the process. There are several limiting factors which can reduce the rate of photosynthesis , eg temperature, light intensity and carbon dioxide concentration.
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Which sides are congruent in the diagram below? PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!ANSWER THE QUESTION WHERE IT SAYS "APPLY IT" Please help with practice questionWrite the following equation in slope-interceptform: x + 5y = 30 The earliest Homosapiens evolved inA.) Australia B.) North AmericaC.) EuropeD.) Africa Find the mean and the standard deviation of thefollowing data set without using technology.6, 17, 11, 18,8 plz help...Auxiliary verb or full verb? I WILL MAKR BRAINLIEST There are economic concerns surrounding the products that have been genetically engineered for particular traits, including pharmaceuticals, crops, and enzymes that are used in industry and manufacturing processes. Which is LEAST likely to be an economic concern that affects society? O patented products birth defects land use O cost of genetically engineered seeds PLS HELP ME ASAP PLS ILL MARK BRAIN What insights about the Puritans do you gain from reading "The Crucible"- insights don't usually find in a history textbooks? Use distributive property to make an expression equivalent to 4(6j + 1 + 6j). (there's no answer choices btw) "It feels like a tear in my heartLike a part of me missingAnd I just can't feel itI've tried and I've triedAnd I've triedTears on my face I can't take itIf lonely is a taste then it's all that I'm tastingDo you hear my cry?" for brainiest:):):):):):) ~!!!!! PLEASE HELP IM IN 7TH GRADE LEARNING 9TH AND 8TH GRADE MATH !!!!~QUESTION SORRY ITS SMALL* What are factors of 36 that add up to 0 1. 10 X 2 = ?2. 40 X 2 = ?please help Please help me guyssssWhich of these led directly to the achievement of Manifest Destiny?Mexican RevolutionTexas RevolutionRepublic of TexasAnnexation of Texas Which of the following is not a factor contributing to the growth of sponsorships What the correct answer what are two prerequisites to active listening and why are they important?